Printing telegraphy



June 2, 1925.

H. PFANNENSTEHL.

PRINTING TELEGRPHY Filed July 29, 1918 4. lSheets-Sheet l //7 1 /6/7/or.' Harry /D/'d/MlehS///z/ H. PFANNENSTIEHL.

June 2, 1925.

PRINTIG TELEGRAPHY Filed Julyv 29 1918 4 Sheets-Sheet 2 H. PFANNENSTIEHL-PRINTING TELEGRAPHY 'Filed July 29, 1918 June 2, 192.5.

4 Sheets-Sheet 5 June 2, 1925.

H. PFANNENSTIEHL PRINTING TELEGRAPHY Filed July 29, 1918 4 Sheets-Sheet4 N .NQ

Patented de i2.

HERY PFNNENSTIEHL, OF ORANGE, NEW JERSEY, ASSIGNOR TO WESTERNy LEC- RIGCOMPANY, INCORPORATED, OF NEW YORK, N. Y., A. CORPORATION F NEW YQRR.

PRINTING TELEGBAPHY.

application med July 29, 1918. erial No. 247,254.

To all whom it mag/i conce/m.' v

Be it known that. l, HARRY PFANNEN- srinrin, a citizen of the UnitedStates, residing at Ilrainge, in the county of Essex, State of NewJersey,have invented certain new and useful improvements in PrintingTelegraphy, of which the following is a full,

clear, concise, and exact description.

rllhis invention relates to printing telegil@ raphy and particularlytoan improved type printer ot the abovetype suitable for printingmessafes in page form and one which is capable o? producing a pluralityof duplicate co ies.

'llo t e above ends, means are provided for distributing a series ofcurrent impulses to a plurality of selecting and operation controllingmagnets, which magnets control the selection of the desired character to-be` printed .and operation to be performed. The invention disclosed inthe accompanying drawings embodies a.l telegraph receiv-v ing printercomprisingstationary, selecting mechanism, a stationary paper platen andprinting elements adapted to be moved transversely of the platen. pmechanism disclosed is of standard type- Writer construction and, infact, the inventioni's applicable to any suitable typewritinav mechanismof the type bar class.

Various-auxiliary functions, such, for example; as line feed. carriagereturn and line feed, shift, unshift, unshift and character space,automatic signaling,' etc., are controlled by a'plurality of specialcode bars selectively controlled -by line current impulses. The variousauxiliary operations of the printer are performed by electromag- A.further object is to provide a receiving' The printingnets cooperatingwith bell crank levers'or suitable operative members to effect thedesired operation.

The selecting mechanism consistsof a plurality of stationary selectingmagnetsl and a corresponding number of horizontal selecting barscontrolled by said magnets. The selecting bars extend transversely andentirely across the printer and are` adapted to be raised and loweredbut are not capable of endwise movement;

A plurality of code bars or permutation bars are provided and ,thearrangement ofv those lbars with respect to the selecting bars is suchthat when any combinationfisiset-up by the selecting magnets,only`one"0f the code bars will be permitted to move forward. and mesh,with the selecting bars. Each of the code bars vcontrols a'pull barwhich is.v adapted to be -moved'forward by l .a code bar whenselectedinto the "path of a reciprocating printing-bar, which printingAbar is, in thefpresent instance, controlledV by an electromagnet. Whena' pull baris moved forward yand engaged by the print` ing bar, a type`face carried bythe selected type lever is thrust against the .paperplaten and the selected character printed; The selecting and printingoperations aregsotimed that, while one character is being printed;

the next succeeding character maybe seey lected so that there is no timelost between the lselecting and printing c'ip'erations.`

. The aboveand other features of this ini ventionwill be fully'setfforth in the following description and claims' and will morereadily understood by reference to the accompanying drawings, inwhich-Fig. 1`ls a perspective View of ,the printer as assembled withparts broken f away to more clearly show the cooperation between theselecting mechanism and the4 movable type carriage and between thevarious stationary and movable parts; Fig. 2 is a vertical sectional oovviewtaken just to the right of thecen'ter of Fig. 1 with the movabletype carriage 1n the center; Fig. 3 .is a. vertical sectional viewthrough the "special selecting mechanism to Y the left-.hand side'ofFig. 1; Fig. 4 vis a plan view of a' portion ofthe selectingv mechalnismshown in Fig. 1; Fig. 5 is `a front sectional; view ofa portion of theselecting mechanism; Fig. 6 is a view ofen. adjustlable device foraccelerating the action of the printing bar; and Fig. 7 is adiagrammatic.

showing of the circuits at the receiving station.

The mechanism herein disclosed is operated preferably by variousvcombinations of live positive and negative selecting impulses with anadditional impulse following each group of selecting impulses forcontrolling the printing and various-auxiliary operations. The impulsesmay arrive over a line L from a distant station and may be distributedto the selecting and operation-controlling magnets by means of a Baudotdistributor, as shown in Fig. 7, or any of the other well-knowndistributing systems may be employed.

AIn order to simplify the drawings, a considerable portion of the framestructure has been-omitted. Also various springs which would normally beemployed for restoring various operating parts t0 normal, have beenomitted in order to avoid complicating the drawings. It'is to beunderstood, however, that suitable supporting means may be provided forthe printer and selecting mechanism, and that-suitable springs-may beprovided wherever necessary for assisting in the operation of parts andfor restoring the various parts to normal. p

In the accompanying drawings are shown a stationary paper platen, amovable type carriage, and means for selectively operating the desiredtype carried by the movable type carriage.l The movable type carriage,including the type levers, bell crank levers, pull bars, universalprinting bar, etc., is adapted to be moved from 'left to `righttransversely of the machine against the tension of a spring member o-necharacter space for each character printed, and the carriage may also bespaced without printing upon receipt of a special combination of linecurrent impulses,A The carriage is adapted to be released by a specialgroup of line current impulses and returned to normal under the actionof a spring for commencing a new line.

Referring to the drawings, and particularly to Fig. 1, the invention isillustrated in combination with a type carriage of a form so well knownas to require no detailed description. The type carriage 5,

vcarrying the t pe bars, connecting links,

code bars, etc., 1s supported by a portion of the frame 6 and arotatable shaft 7 The selecting mechanism consists of five selectingmagnets, 10, 11,-12, 13 and 14, five horizontal selecting bars, 15, 16,17, 18 and 19, extending entirely across the printer at right angles tothe code bars, and five latches, 20, 21, 22 23 and 24, extending fromthe armatures of the selecting magnets to theselecting bars. Theselecting'bars are normally held in the position shown by means of thenotched member 8 and when released and permitted to drop, they are heldin their lowered positions by means of springs 9 until restored by theupward.

movement of the member 8, in which posi- Selecting and print-ing.

A better understanding of the apparatus may be obtained from adescription of a particular character selection and the variousoperations incident thereto.

Assume that a series of impulses for selecting the character D is comingin over the line L, and further assume that the character'D is selectedby five impulses combined in the following orderg-positive, negative,negative, positive, negative. Let it also be assumed that at thereceiving station is a polarized relay 25 which responds only topositive impulses and which controls the energizing circuits of theselecting magnets 10 to 14, inclusive. It may also be assumed that thereceiving distributor 37 rotates in synchronism with a correspondingsending distributor at a distant station and therefore the line impulsesare distributed sequentially to the selecting magnets 10 to14,`inclusive. Then since the first and fourth impulses are of positivepolarity, current wil be supplied to the selecting magnets 10 and lkandsince the second, third and fifth impulses areof negative polarity, nocurrent will be su plied to selecting magnets 11, 12 and 14. electingmagnets 10 and 13, when energized, attract their armatures and withdrawtheirrrespective latches 2O and 23 from engagement with thecorresponding selecting bars 15 and 18. The selecting bars 15 and 18,however, do not fall the instant the latches are withdrawn because thelbars are supported by the member 8, vwhich member is controlled byprinting magnet 26. The five selecting impulses have now been received,the selecting magnets 10 and 13 have been energized and the selectingbars 15 and 18 have been conditioned for action awaiting receipt of `thesixth or printing impulse. After the distributor brush has passed overthe first five segments, 30, 3l, 32, 33 and 34, which segments areconnected to the five selecting magnets, the distributor brush thenengages segment 35 and completes a circuit through receiving start relay27, from grounded battery 28, to ground at amarlo the distributor.Current .normally flows through the left-hand winding of relay 27 fromgrounded battery 29 to contacts 39 and ground, but owing to the highresistance of this winding the relay is not suili'ciently energized tocause the attraction of armature 36 until the circuit is closed throughthe other winding from battery 28. `Wl1en current is. allowed to iowthrough both windings of relay 27, the armature 36 is attracted tocomplete parallel circuits through printing magnet 26 andcharacter-spacing magnet 40. The circuit through the printing magnetextends from grounded battery 42, winding of magnet 26 to armature 36and front contact thereof to ground and the circuit through thecharacter-spacing magnet extends from grounded battery 41g, winding ofmagnet 40, to armature 36 and front contact thereof to ground. Althoughthe energizing circuits through the printing and character-spacingmagnets are established simultaneously, owing to the fact that theprinting operation does not take place until an appreciable time'afterthe striker bar 43 has been actuated, the spacing operation may takeplace prior to the printing operation. It will also be noted that magnet26,y

by operating rocker arm 44, opens the contacts 39, thereby breakingthecircuit through the high resistance winding. of the start relay 27.While Vthe current normally iowing through the high resistance windingof relay 27 is insufficient to cause the attraction of armature 36, itis suiicient to hold the armature 36 in its attracted position until thecircuit is .broken at contacts 39. The printing magnet 26, in additionto actuating the striker bar 43, permits a plunger 46 to move verticallyand therefore permits the rocker bar 47 to turn about its. pivotal point48 under the action of spring member 49.l The member 8, in responding tothe movement of the arm 47, is pulled own by suitable'springs until theshoulder 50 can.

ried thereby, engages the frame 'portion 51.

'lfhe selectedyk bars 15 and 18 willfollow the downward movement of themember 8 and will permit one and only one of the code `bars 52 to moveforward, when released, astride the selecting bars. The code bars 52 are.normally held in the position shown by the universal bar 53 whichextends entirely across the type carriage in front of extensions 54carried by the ycode bars, the forward pull of springs 55 beinginsufficient to counteract and overcome the pull of springs 56. rllheuniversal bar 53 and the printing bar'57 are moved out oftheir normalositionsby means of the striker bar liich is forced downwardly whensupporting rod is rotated, due to the energization ofprinting magnetA26. 'llhe striker bar isv carried by two kbracket arms 58 and 59 whichare pivotally secured to the supportingrod 60. The rod CU may bejournaled in the sides of the printer frame or clearly shown in Fig. 2.0n the supporting rd 60 and adjacent each of the bracket arms 58 and 59is rigidly mounted an arm 62, which arms are adapted to be operated bytherotation of rod 60.V llach of the arms 62 carries a kmember 63 whichis normally held in engagement with its corresponding adjustable member61 by spring member 64 butmay be held away from the members 6l forcertain purposes, as will presently appear. It will be seen by referenceparticularly to Figs. 1 and 2, that when the striker bar 43 is forceddownward, it will act on the extensions 65 and 66 of bell crank lever 67and arm 68 which will move the universal bar 53 forward and the printingbar 57 upward. All of the code bars are normally held clear of theselecting bars by the 'universal bar 53 and when the universal bar ismoved forward alliof the code bars, due to the action of the springs 55,-will also move forward slightly but only the selected code bar will bepermitted to move forward astride the selecting bars. As the selectedcode bar moves forward, an extension 69 thereof engages a pin 70 on thecorresponding pull bar 71 and moves its respective pull bar into thepath of the reciprocating printing bar 57 so that on its downward strokethe printing bar strikes the end of the selected pull bar and by meansof alink 72 connecting each of the pull bars with its corresponding typebar 7 3,v 'the selected type is thrust against the paper platen in awell-known manner. By selecting a printing magnet of proper type andsize the downward stroke 'of the striker bar 43 can be made exceeding-1y rapid and consequently the forward stroke of the universal bar andthe upward strokev of the rintng bar can be made `equally rapid. y aproper selection of springs l56, 74 and 7 5, the universal bar and theprinting bar may be returned to normal with equal rapidity and, in fact;it is desirable that the springs 74 and 75 be of such strength that theprinting bar will strike the selected pull bar with such force that thepull bar willtravel ahead and disengage itself `from the printing barand permit the spring 76 to return the actuated pull bar to normalposition as the selected code bar is restored by the universal bar 53under the action of springs 56. The quick action of the printing barcauses the selected type bar to be thrown against the paper platen withsufficient force for manifolding and may also be sudicient to cause thetype bar to return to normal due to rebound, or the return action of thetype bar may. be increased by providing a spring, such as 77, lc'onnected to each of the connecting levers 4Q.

The spring member 75 (Fig. 6) preferably consists of a steel piano wirestretched tightly above the universal printing bar 57. One end of thespring 75 may be rigidly connected to the frame portion 7 8 and theother end may be connected to an adjustable upright 79. By means of thethreaded screw S0 and knob 8l, the upright 79 may be moved transverselyof the printer and the tension of the spring 75 may be accordinglycontrolled. Near the center of the universal printing barv 57 is a block82 which is adapted to engage the spring 75 when the printing bar ismoved upwardly. The primary purpose of spring 75 and the adjustablemeans therefor is to adjust the throw or force of the type bars formaking various numbers of duplicate copies.

The function of the code bars is to move the pull bars corresponding tothe character selected into the path of the reciprocating printing bar57. Therefore, as soon as a particular pull bar has been engaged by theprinting bar, the selected code bar should he Withdrawn so that theselecting bais may be stored and a new selection set up. The springs 5Gshould therefore be of such strength as to restore the universal bar 53the instant ythe printing bar engages the selected pull bar. Immediatelyafter the selected code bar is withdrawn by the universal bar 53, arm160, which is keyed to rod 60, acting upon plunger 46, will rock the arm47, and raise the member 8 to restore the selecting bars to normal,ready for a new selection.

Spacing.

Spacing between characters is effected by a spacing magnet and in theembodiment disclosed the type carriage is moved forward one step or onecharacter space before each character is printed. A pivotally mountedrod 83 is provided which may be journaled in the frame of the machine orsupported in any suitable manner. Rigidly secured to the rod 83 are twobracket arms 84 and 85 (only one of which is clearly shown) which carrya rack 86. The letter space magnet 40 operates a bell crank Vlever 87.To one end of the lever-87 is connected an operating lever- 88, on theend of which is a pawl 89 adapted to engage the teeth of a ratchet wheel90 whenever the arm 88 is moved forward by the bell` crank lever 87, dueto the energization of themagnet 40. rl`he rotation of the ratchet 90effects rotation of the shaft 7 and by means of a worm wheel 91 mountedthereon and cooperating with the rack 86 the type carriage 5 is moved tothe right one step 'or one character space for each energization of themagnet 40. A holding pawl 38 is provided to prevent backward rotation ofthe ratchet wheel 90.

'lhe spacing mechanism is so arranged that the type carriage will bestepped ahead immediately preceding the printing of a character,although spacing between characters may be effected if desired, afterthe printing of each character.

The magnet 40, in addition to spacing the type carriage,- operates aribbon control mechanism which is normally in the position shown inFig. 1. The operating lever 8b' has an upwardly extending arm 92 which,when operated, engages a crank arm 93 and, as will be clearly seen fromFig. 1, effects rot-ation of the rod 94. The iod 91 carries two bracketarms 95,-one of which is at each end of the platen frame, which act uponpins 96 and thereby cause the inking ribbon 97 to be moved in front ofthe typebar just as it strikes against thepaper platen. Springs 98,acting upon pins 9G, serve to hold the ribbon down from in front of theprinted characters so that they are Ovcrlap arrangement.

The purpose ofthe overlap arrangement is to make possible the selectionof a new character while the preding character selected isibeingprinted. Each of the latches 20, 21, 22, 23 and 24 is provided with aspring `99' normally tending to.pull the latch sidewise so that when thelatches are withdrawn by means of the selecting magnets from beneath theselecting bars, the extension 100 carried by each of the latches' willbe drawn over and back of the frame portion 101 and will remain lockedin their withdrawn positions until forced sidewise again so that theextensions 100 'will clear the frame portion 101. .As soon as thelatches are unlocked or the extensions 100 are moved away from,`engagement with the frame 101, they will be returned by the action ofthe springs 102 connected to the.

armatures of the selecting magnets until the bent-over portions 103(Fig. 5) abutagainst the selected bars, in which position the latcheswill be held until the selected ba'rs are restored to normal, therebypermitting the latches to move in under the restored bars providing asucceeding selection does not interfere with the complete return of thelatches. When the member 8 is released by the rocker arm 47 it is pulleddown by the action of spring 104 until the offset portion 50 engages theframe portion lab leased.

5l (as clearly seen in Figs. 1 and As the member t; moves downward, the,pawl 105 carried thereby engages the end ot a sliding member 106carrying a plurality ot' extensions or an extension corresponding toeach ot the latches to 24, inclusive. As above. si ated, when thelatches 20 to 24, inclusive, are actuated they lare drawn to the le-ltby the action otsprings 99 and remain locked against the trame port-ion101 until they are moved to the right or re'- l`he sliding member 100 inits downward movement, dueto the corresponding movementot` member 8,causes the extensions carried thereby to engage the v beveled endportions of the latches 20 to 24,

inclusive, thereby forcing them -side'wise until the extensions 100clear the frame portion 101, thereby permittingr the latches to returnto normal'. The Imembers S and 106 and pawl 105 are so arranged that themember 106 isrforced downward just far enough to free the selec-tedlatches 20 to 24 inclusive when the extension 107 of pawl 105 engagesthe frame portion 108, thereby releasing the slidable member 106 andpermitting it to return to normal under the action of spring 109. r

lf a succeeding selection, coming before the selected bars are restored,utilizes one or more positive impulses corresponding to one or more ofthose of the preceding selection, then the latches will be'actuated bytheir respective magnets and remain in their actuated positions untilthe member 106 is again forced downward due to the action lof therockable member 47 and slidingmember 8. The operation of the member 106should take place preferably immediately after the selected bars areactuated so that the released latches may return and abut against theselected bars andl be in position to respond to the next selection, ifrequired, or tomove under the bars the instant they are restored tonormal if they are not required for a succeeding selection. By means otthisA arrangement a-new selection may be set up while the preceding4character selected is being printed. Thus it-will be seen thatl thepurpose of the locking and restan-ing means for the latches is twofold.First, by locking the latches yin their actuated positions until theselected bars ing impulses has one or more positive im.

`pulses in common' with those of the precedlng group.

'.lumlz'ary selections.

ln addition to selecting and printing various characters and providingmeans for spacingbetween characters and words, as hereinbetoredescribed, there arevarious auxiliai-y operations to be peformed, such,for example; as carriage return and line feed, line feed, platen shift,platen unshift, automatic signaling, ete.

To the left-hand side of Fig. 1. is shown a plurality of special codebars, 110, 111, 112, 1.13, 114 and `115,.which are, similar to the codebars 52 mounted on the movable type carriage 5. The special code barsare adapted to slide in recesses provided in stationary supports 11G and117 and are selectively con'. trolled by line current impulses in thesame manner as the character code bars 52; that is, the variousauxiliary operations are selectively controlled by code signals whichare transmitted in the same manner and by the same means .as the variouscharacter signals.

Carriage return and' Zz'nel feed.

W hen it is desired to. return the type carriage to the left to commencea new line,it is also desirable thatthe paper platen be rotated in orderto feed the paper forward to present-a clean surface for the neXtvlineof characters. This is sometimes accomplished by sending one group ofimpulses over the line to effect -the return of the type carriage andanother group of im ulses to effect the rotation of the platen. owever,both operations may be effected. simultaneously and by a single group ofsignaling impulses. The return ot the type carriage and the feed-y ingof the paper may be accomplished by sending over the line a group ofimpulses to cause the selection of a special bar 115, which `group ofselecting impulses is followed by a sixth or starting impulse as usual.The operationof magnet26 effects rotation of the rod as hereinbeforedescribed, and forces the auxiliary striker bar 118 (which barcorresponds to the main striker bar 43)y down against the action ofsuitable springs, not shown. The bar 118, acting upon bell crank levers119 and 120, moves auxiliary universal bar 121 (which bar corresponds tothe main universal bar 53) forward and perrmits the selected code bar115 to move forward astride the selecting bars 15 to 19, inclusive. Asthe special code bar 115 moves forward. it closes contacts 122 (Fig. '7)and establishes an energizing circuit for the carriage returnmagnet 123from grounded batteryf 124, winding yot magnet 123, contacts 122, toground. Carriage return magnet 123, when energized, operates a lever 125which is keyed or rigidly secured to the rod 83, thereby electingrotation of the latter. To the miv bya holding pawl 135 until the maployed. When itis desired to print from rod 83 is also rigidly securedthe Vbracket arms 84 and 85 which carrythe rack 86. The rod 83 alsocarries two rigidly supported members 175 (only one of which is clearlyshown in Figs. 1 and 2). At the' free end of member 175 is an adjustablepin 127 so arranged that when the rod 83 is rotated the pin will engagethe spring pressed member 63 and force it out of engagement with theadjustable pawl 61. The result is that when the rod 83 is rotated by theenergization of magnet 123, the rack 86 will be moved out of engagementwith worm gear 91 so that the carriage may be returned under the actionof spring member 4128 and the actuation of member 63 will preventoperation of the universal striker bar 43 while the'carriage is beingreturned to normal position.

The special code bar 115 has a bent-over portion or extension 129 whichis adapted when moved forward to engage a member 130 which is pivotallysupported at 131 and close an additional set of contacts 132. Theclosure of contacts 132 establishes 'an ener- Uizing circuit for theline feed magnet 133 rom grounded battery 134, winding of magnet 133 andcontacts 132, to ground. It will be observed from Fig. 7.that when themember 130 is, moved forward to close contacts 132, it willbe held inits actuated position y et 133 has rotated' the platen 136 a comp etestep through the instrumentality of the ratchet 137, pawl 138, lever 139and bell crank lever 140, atwhch time the leverv 141 will engage thereaward extension of pawl 135 and release the member 130.

While separate magnets are employed for performing the carriage returnand linel feed operations, it will be seen that both magnets areactuated simultaneously and by a single code group of impulses.

In order thatv the paper platen 136 may be rotated to line feed at timesother than when the type carriage is being returned, a special codebai-114 is rovided which, when permitted` to ymove orward, closescontacts 132 and thereby establishes' an energizing circuit for Vtheline feed magnet 133, as hereinbefore p .y described.

Pl'dten shift.

The type bars are provided with two rows of type faces, one above theother. The lower row'of ty e is the row generally.. em

the upper rowof type faces, a particular group of signals is transmittedfor selecting the special code bar'111 which cooperates wit-h suitableelectro-mechanism to raise the paper platen so that when the type barsare operated the type of the upper row will be ressed against theplaten.4 When the code bar 111 is selected and permitted to moveforward, it engages member 142, and rotates it about its pivotal point143, thereby closing contacts 144 to .establish an energizing circuitthrough shiftin magnet 145' from grounded battery 146, winding of magnet145 and contacts 144, to ground. As in the case of the line feedmechanism, the contact controlling member 142 is locked iu its actuatedposition by means of pawl`147 until the platen has been moved to itsdesired osition, at which time the holding pawl 147 1s released. lVhent-he platen 136 1s moved to its extreme shiftedposition by means of therocker arm 148, a. pawl 149 engages the end of the rocker arm 148,thereby holding the laten in its shifted position until the holdmg pawl149 is withdrawn.

Platen unshift.

T o unshift or return the laten to normal it is only necessary to unlocthe mechanism which holds the platen in the shifted position. Twoseparate means are provided for operating the unshift mechanismdepending upon whether it is desirable to unshift without spacing or tounshift and Space at the same time. To unshift without spacn a group ofimpulses may be transmitte" to select the special code bar 113 which,when permitted to move forward, closes contacts 150, thereby completingan energizing circuit through unshift magnet 151 from grounded battery152, winding of -magnet 151andcontacts 150, to ground.A The instantunshift ma et 151 is energized and the pawl 149, whlch forms a part ofthe armature of magnet 151, is withdrawn from engagement with the rockerarm 148, the platen 136 returns to normal or moves into position forlower case printing. If it is desired to unshift and space, as whenplacing a. comma, period, semi-colon, etc. after a word (which specialcharacters are invariably carried in the upper case position) vand thenvprovide the usual space between `words, this may beaccomplished bselecting a s ial code bar 112 which, w en permitted to move forward,likewise establishes an energizing circuit for unshift magnet 151 by,the closure of contacts 153.

It will be noted that code bar 112 is the only one of the special codebars not provided with an upwardly extending arm to prevent theoperation of the spacing mech anism. When the special code bars areselected to perform the various auxiliary operations herein mentioned,it is necessary to provide means'to prevent the' actuation of the typecarriage so that character spacing does not take place except whendesired. This is taken care of b v providing a le`ver 156, whichcooperates with an arm 161 and prevents the actuating pawl 89 fromengaging the teeth of the ratchet wheel 9() when any of the code bars110, 111, 113, 114 or 115 is selected.. When the impulses for riage whendesired and to be' withheld fromA engagen'ient with ratchet wheel 90 bymeans ot' a cam member 163 when spacingis not desired. The pawl 89 whenrevolved, rides upon the cam surface 163 and, unless the arm 161 isprevented from restoring to normal, the pawl 89 will engage thevsucceeding tooth of the ratchet wheel 90 for effecting the spacing uponthe subsequent energization of magnet 4t). However, when any one of thetive special code bars is selected, as mentioned above, the ,lever 156which'is pivotally mounted on the supporting rod 155 and which isadapted to be actuated when any one of the five code bars moves forward,causes the bent over portion 162 to be moved under and back of anextension on the arm 161. The'movement of the bent over portion 162under the extension of the arm 161, thereby maintains the pawl 89 out ofengagement with the teeth of the ratchet wheel D() and prevents movementof the type carriage upon the subsequent energization of vmagnet 40. Thearm 156 is adapted to be restored to normal upon the rece tion of asucceeding group of 'impulses w iich again energizes magnet 40 and movesthe levers 87 and 88 together with the pawl 89 and the member 161, andsince the special code bar has already been released and restored tonormal due to the deenergization of magnet 26, the arm 156 will thenmove out of the path of thearm 161 and be restored to normal b v meansof a suitable retractile spring (not shown). The .arm 161 is thenrestored to .its normal position by means of the retractile spi-ingsecured thereto and permits the pawl 89 to engage a succeeding tooth forstepping the type carriage upon the subsequent energization of magnet40.

Automatic signaling.

- selecting magnets. This feature is covered in a separate applicationand forms no part of the present invention..

Vhat is claimed is:

1. ln a printing telegraph receiver, a type carriage comprising aplurality of type bars, an electromagnet for moving said type carriagetransversely for character printing, and stationary permutation meansfor selectively controlling the operation of the type bars.

.2. In a printing telegraph receiver, a traveling carriage having aplurality of selectable. members movable therewith, an electromagnet formoving lsaid type carriage transversely for character printing, a plu-`rality of similar stationary selectable members,and means common to allsaid members, for selecting any one of them.

rln a printing telegraph receiver, the combination of a carriage havinga plurality of individually operable'code bars, an electro-responsivedevice -for moving said carriage, and stationary permutation Vmeans forselectively controlling the operation of said code bars.

4. In a printing telegraph receiver, a movable vtype carriage comprisinga plurality of printing bars and extensions therefor, a printing magnet,a member arranged transversely of said printing bars, and means operatedby said'printingmagnet for permitting said member to'engage an extensionof said printing bars to effect the printing of a desired character.

5. In 'a printing telegraph receiver, a stationary paper platen,selecting mechanism, a plurality of type levers responsive tosaidselecting mechanism and cooperating with said paper platen for printingany desired character,` an electro-magnet for moving said type levers toprint the desired characters, and all lnechanical means operateddirectly by said electro-magnet for restoring said selecting mechanismto normal to be in readiness for the selection of -a character beforethe printing of the preceding character selected thereby is completed.

6. In a printing telegraph receiver, selecting mechanism, printingmechanism responsive to said selecting mechanism, an electromagnet formoving saidprinting mechanism in ay transverse direction with respect tosaid selecting mechanism. a printing magnet, and means controlled bysaid printing magnet whereby a vnew character may be selected before theprinting of the preceding cha acter selected is completed. i

7. In a printing telegraph receiver. a selecting mechanism comprising aplurality of selecting bars movable in a direction trans` versely oftheir length, latches for holding said bars in their normal positions,`means for withdrawing said latches to permit actuation ot saidselecting bars, means for moving said selecting bars ina directiontransversely of their length following-the withdrawal et said latches`and electro-responsive mechanism for restoring said selecting bars tonormal.

8. Printing telegraph apparatus comprising a paper platen, a support forsaid platen, a rocker arm engaging said support, a plurality of movablemembers, an electromagnet individual to each of said members and meansfor selectively operating one of said members for causing theenergization ol said electromagnet and the cooperation thereof with saidrocker arm for shifting said platen.

i). Printing telegraph apparatus comprising a paper platen, a supportfor said platen, a rocker arm engaging said support, an electromagnetoperating solely 0n said rocker arm for shifting the platen, and a latchcaused to engage the rocker arm upon the movement thereof for lockingthe platen in its shifted position.

10. Printing telegraph apparatus comprising a paper platen, a supportfor said platen` a rocker arm engaging said support, an electromagnetoperating solely on said rocker arm for shifting the platen, a latchcaused to engage the rocker arm upon the movement thereof for lockingthe platen in its shifted position, and selectably operatedmeans .forwithdrawing said latch from engagement with said'rocker armi 11.Printing telegraph apparatus comprising a paper platen, a support forsaid platen, a rockerarm engaging said support an electromagnetcooperating with sait rocker arm for shifting the platen, a latch causedto engage said rocker arm upon the movement thereof, and anelcctromagnet controlledby a special group of impulses for withdrawingsaid latch from engagement with the rocker arm.

12. In a printing tele raph receiver, the combination of a trave ingtype carriage comprising a plurality of character arms, a selectablemember individual to each character arm, and an actuating arm, withstationary selecting bars cooperating with said selectable members toselect one of said character arms, and an electromagnet cooperating withsaid actuating arm to actuate the character arm selected. a

13. In a printing telegraphreceiver, selecting bars, means forselectively releasing said bars, means for retaining said bars in anormal position, a magnet for rendering the retaining means ineffectiveto cause the released bars to move from their normal position. code barscooperating with said selecting bars, and a printing bar opera-ted dueto the energization of said magnet for causing the printing of acharacter in accordance with tuhe code bar selected.`

14. In a printing telegraph receiver, peri'nutation bars normallytending to move, ans controlled by line current impulses directlyconditioning the permutation bars for n'iovement1 an electro-responsivedcvice also controlled by line current impulses, a rocker-arm operateddirectly by said device when energized for releasing the permutationbars in various combinations, and a plurality of type lever operatingelements, one of said operating elements being selected upon the settingof said bars in various combinations.

15. In a printing telegraph receiver, a printing magnet, a movable typecarriage comprising a plurality of printing elements, code barscooperating with said printing elements and carried by said typecarriage, and means controlled by said code bars and actuated directlyby said magnet to eii'ect the actuation of said printing elements.

1G. In a printing telegraph receiver, the

combination of a movable type carriage, printing elements carriedthereby, electromagnetic means for moving said type carriage, aplurality of selectable code bars, means ior causing the selected codebars to control the printing elements, and means cooperating with thecode bars for actuatinthe printing elementsv to print a desirecharacter.

17. Printing telegraph apparatus comprising a traveling type carriage, arack, a Worm gear traveling with said carriage and cooperating with saidrack for advancing thc carriage step by step, an electro-responsivedevice and means operated directly by said device for withdrawing therack-from engagement with the worm gear to permit the return of saidcarriage.

18. In a printing telegraph receiver,- a selecting mechanism comprisinga plurality of permutation bars, means for selectively releasing saidbars in various combinations, a printing magnet, universalmeans actuateddirectly by said printing magnet for permitting the released bars tomove to their selecting positions in a number of dilerent combinations,and a plurality of type lever operating elements one of said elementsbe- Alecting positions in a number of given permutations and foreffecting the printing operation upon the deenergization thereof.

Q0. In a printing telegraph receiver, the combination of a currentdistributor, a pluralityinf circuits connected thereto magnets insaidcircuits, a plurality of selecting bars one for each magnet andcontrolled thereby, a movable type carriage carrying the charcombinationof a current distributor, a plu rality of circuits connected thereto,selecting andpoperation controlling magnets in said circuits, aplurality of selecting bars one for each selecting magnetand controlledthere:

by, a movable type carriage'carrying' a plurality of type levers, aplurality of spring tensioned'code bars selectively controlled by therelative position of said selecting bars,

and an electro-responsive device controlled by said operationcontrolling magnet and cooperating with said code bars and selectingbars to select the desired character to be printed.

' Worm 22. In'a printing telegraph receiver, a current distributor, aplurality of branch circuits connected thereto, type selecting ymagnetsand an` opera-tion controlling relay in said branch, circuits, a movabletype basket carrying characters tobe selected, an electromagnet underthe control of said operation controlling rela-y for moving the typecarriage, and an additional. magnet likewise controlled by saidoperation controlling relay for printing the desired character.

' 23. In a printing telegraph receiver, a laten, a movable typecarriage,- 4means or moving sald type carriage transpaper versely oftheplat'en in one direction step by step, electromagnetic means forcontrolling the return of the ty e carriage to normal position and forrotating the platen simultaneously', and means for efecting one of saidlast-mentioned operations independently of the other. p

24. In a printing telegraph receiver, a

rotatable paper platen', a ,movable type. carriage,v an electromagnetfor moving said type-'carriage in one direction step by step,

'anda device controlled by a' special group. 'of impulses for permittingthe return of the type carriage and for effecting rotation of theplaten.y v

25. Printing telegraph apparatus comprising a rotatable platen, atraveling ty e carriage including a` pluralityv of in ependently movabletype levers, a rack, a ear cooperating with said rack for advancing thecarriage, and a magnet controlled by line current impulses for ,eiectingrotation of the platen and for withdrawing the rack from engagement withthe worm gear to permit the'return of said carria e. v

rinting` telegraph apparatus comprising a paper platen, a type carriagecapable of movement transversely of said platen, a magnet for shiftingthe said platen, means for holding the platen in its shifted position,and a second magnet controlled by a special group of line currentimpulses for permitting the advance of said carriage and for releasingsaid holding means.

27. In a printing telegraph receiver, a plurality of selecting elements,an operating member individual to each of the elements, electromagneticmeans for operating said members sequentially, a member common. to

said operating members for controlling the simultaneous movement of saidselecting elements in accordance with thesetting of the yoperatingmembers, and electromagnetically operated means operated following therecei t of the selecting current units for supp ying energyto operatesaid common member. v

28. Ina printing telegraph receiver, a plurality 'of selecting elements,an operating member individual to each of the elements, electromagneticmeans for voperating said members sequentiall a memberk common to said.operating mem rs for controlling the simultaneous movement of saidselecting elements in accordance with the setting 4of the` operatingmembers, and electromagnetic means energized over a local circuit-,saidelectromagnetic means itself operatin said common member to permit thepositioning of the selecting elements in various combinations.

29. In a printing telegraph receiver, a

plurality of selectingy elements', a plurality my name this 24th day ofJuly, A. D., 1918.

HARRY PFANNENSTIEHL.

